Terra Sigillata & Burnishing

Mix 2 kg water/2 liter + 1 kg Clay + 25g deflocculate
Brush on bone dry with 3 coat all at once
Brush on bone dry with 3 coat all at once
After pit firing
Brush on bone dry with 3 coat all at once
Brush on bone dry with 3 coat all at once
After pit firing

Terra Sigillata 

#Don't fire your Terra Sigillate/burnished pot over 950C/1720F; otherwise, it will diminish the shine.

Clay Slip + deflocculates or sodium silicate (allow fine Particles to float freely)

  1. Transparent plastic jar/glass
  2. Mix 2 kg water/2 liter + 1 kg Clay + 25g deflocculate
  3. Let it sit for 24 hours
  4. The lighter particles rise to the top
  5. The heavy particles sink at the bottom
  6. Only use the middle-level slip for Terra Sigillate
  7. Slighty spray with water (recommand) before brushing on bone dry surface with 1-3 coat all at once
  8. Smooth the surface with soft cloth/plastic bag sheet (the white thin one)
  9. Bisque firing to cone 018 before pit firing..etc.

Burnishing Pot

(Alternative methods without Terra Sigillata)

Materials

  1. Bone dry pot
  2. Sandpaper
  3. Rag/Towel/Think plastic (bag) sheet
  4. Water
  5. Vegetable Oil

Option 1

  1. Wet the pot & rub water with fingers
  2. Make some slip, fill the gap if need to
  3. Work in a spiral motion evenly
  4. Cover with vegetable oil
  5. Leave10 minutes
  6. Rub again with a (smooth) stone/spoon
  7. Finish it with a chamois-leather
  8. Deco-incising or colored Terra Sigillata if want to
  9. Bisque firing to cone 018 before pit firing..etc.

Option 2

  1. If any rough/lump surface, sand smoothly first
  2. Cover with baby oil
  3. Rub with a T-shirt cloth (slightly wet/damp)
  4. Burnish with a stone/stainless steel spoon
  5. Bisque firing to cone 018 before pit firing..etc.

Further finishing to enhance the shine after firing

  • Polishing with oils OR
  • Rubbing the surface with a thing costing of wax
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